pneumatic concrete breaker

例句：

1. 1.The pneumatic concrete breaker is an essential tool for construction workers.
   气动混凝土切割机是建筑工人必备的工具。
2. 2. The pneumatic concrete breaker was used to quickly cut through the concrete slab.
   气动混凝土切割机被用来快速切开混凝土板。
3. 3. The pneumatic concrete breaker is a powerful tool that can be used in various construction projects.
   气动混凝土切割机是一种强大的工具，可以在各种建筑项目中使用。